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Commit 581dbd94 authored by NeilBrown's avatar NeilBrown Committed by Shaohua Li
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md/bitmap: add blktrace event for writes to the bitmap



We trace wheneven bitmap_unplug() finds that it needs to write
to the bitmap, or when bitmap_daemon_work() find there is work
to do.

This makes it easier to correlate bitmap updates with data writes.

Signed-off-by: default avatarNeilBrown <neilb@suse.com>
Signed-off-by: default avatarShaohua Li <shli@fb.com>
parent 109e3765
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